Sounds like my darker blue 3.8 I sold a while back, drove fine and the next day it sounded like every relay popping and clicking the wipers came on the horn was honking, and made me about shiit myself. Sold it for $400 😂
So here’s where I’m at with mine…. I recently bought a 1999 3.8 ford mustang for pretty cheap and have been driving it for the past week with a temporary fuel tank and in-line fuel pump configuration… well today on my break at work I decided to pull her on in and see what I got going on stock fuel pump wise well while doing this I plugged in the snap one Zeus scanner and discovered the vehicle has been manual swapped whatever well after this I went into Mitchell one for the wiring diagram and component connector for the fuel pump. With this being said I discovered that the component connector diagram was incorrect and where it informed me the fuel pump power was actually my 5v reference… with that being said I loaded that with 12 volts and haven’t been able to communicate with the pcm since. First thing I did was check fuses 5v reference at the pcm, powers and grounds all came back normal next thing I did was head on over to the schematic and find possible culprits to the issue… I discovered that perhaps the ccrm was toast as the fan ran consistently but come to find out after this that is common after loss of communication… well I already ran in-line relays to bypass this now I’m leaning towards the fact that I may have shorted a sensor on the 5v reference circuit during this process just unsure where to go if that fails I plan to update what I find
Hi, I'm just wanna say thank you , because thanks to you I was able to start again my 2006 mustang 4.0 🙏
Glad to hear that my friend! You are most welcome!
Sounds like my darker blue 3.8 I sold a while back, drove fine and the next day it sounded like every relay popping and clicking the wipers came on the horn was honking, and made me about shiit myself. Sold it for $400 😂
Good thing you sold it my friend. 😃
So here’s where I’m at with mine…. I recently bought a 1999 3.8 ford mustang for pretty cheap and have been driving it for the past week with a temporary fuel tank and in-line fuel pump configuration… well today on my break at work I decided to pull her on in and see what I got going on stock fuel pump wise well while doing this I plugged in the snap one Zeus scanner and discovered the vehicle has been manual swapped whatever well after this I went into Mitchell one for the wiring diagram and component connector for the fuel pump. With this being said I discovered that the component connector diagram was incorrect and where it informed me the fuel pump power was actually my 5v reference… with that being said I loaded that with 12 volts and haven’t been able to communicate with the pcm since. First thing I did was check fuses 5v reference at the pcm, powers and grounds all came back normal next thing I did was head on over to the schematic and find possible culprits to the issue… I discovered that perhaps the ccrm was toast as the fan ran consistently but come to find out after this that is common after loss of communication… well I already ran in-line relays to bypass this now I’m leaning towards the fact that I may have shorted a sensor on the 5v reference circuit during this process just unsure where to go if that fails I plan to update what I find
Yes sir that's possible. If the 5 V reference circuit is shorted out, it'll pull the entire system down and it could cause a no start.